Why it works: Onion and mustard match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 9,259 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Pork Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Cut the pork into chops and season with pepper and salt.
Bake
Cover the chops with puff pastry.
Bake the pie at 400°F (200°C) until golden brown.
Serve
Before serving, add cullis, essence of onions, and mustard into the pie.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Onion + mustardtop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + mustardtop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + oniontop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pork + mustardtop 11% of all pairsSmell alikemoderateCooked together2,445 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pork loin
- Provides the meat that becomes the filling, cooking through under the pastry.
- Puff pastry
- Forms the crisp, flaky crust that encloses and browns over the filling.
- Mustard
- Adds sharp, pungent flavour that cuts the richness of the pork.
The step that matters
Baking until golden brown. The pork sits inside the pastry, so the cook must judge doneness by the meat's internal cooking rather than the crust colour alone. Pork should be cooked through, and the pastry browns through Maillard reactions at high heat.
Swap the onion
How well each one fits the dish's main ingredients (pork, pepper, sauce, mustard):
- Capsicumfits better
- Horseradishfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against pork, pepper, sauce, mustard. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
More pork pie recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Pork Cake107 recipes
Roast Pork82 recipes
Tomato Soup526 recipes
Brown Bread461 recipes